Street-sweeping machine.



Patented Fem, 1909.

m NYJ .Nu QN RN QN NW N.

gvwentoz flttroznu J. BANSER. STREET SWEEPING MACHINE.

APPLIUATION AFILED JULY 22, 1908.

Patented Feb. 9, 1909.

3 SHEETS-SHEET 2.

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J.' BANSBR.

STREET SWEBPING MACHINE. lfIfI-.IGATION FILED JULY 22,`1908.

`91 1,4696.l y Patented Feb.9, 1909.

Y vwenl'oz e Jawa/(75621 Witness f W .ff (n u W l l "Stimme-q rnrnxrirrita,

j @roma BANsER, orcmixn' LAmafINDIANA.

STREET-summinc MACHINE. y

No;l 911,696. Y

Y speeineation @Letters raient.

" ratentedvreb. 9, 1909.

i Applicationf1ednJulyn22, 1908. ySerial110.444,801. i

To all whom it may concern: A

Be it known that I, JOHN BANSER, citizen 0f the United States, residingatv Cedar Lake, in thecounty of Lake-andState of Indiana, have inventedcertain new'and useful Improvements in :Street-Sweeping Machines, ofwhichvthe'following is a specifica# tion. y

This invention relates' to machines for sweeping streets, and especiallyto that class thereof which sweep'the dirt into awagon body or box bymeans of which'the same may be carried away and dumped in any de-Vlsired place. w 1 f The invention is characterized particularly byimprovements with respect 'to the means for sweeping and elevating thedirt, and with respect to the means for raising and lowering the brushesand associated parts and for driving the same.

The invention is illustrated in the accompanying drawings in which-Figure 1 is a top plan view of the machine; Fig. 2 is aside elevation;Fig. 3 is a longitudinal section; Fig. 4 is a cross section on the line4 -4 of Fig. 1.

Referring specifically tothe drawings, the

frame of the machine or vehicle consists of a pair of closed sides 6with a box vat the rear formed by a bottom 7 inclined downwardly andrearwardly. At the back is a door 8 which may be opened to allow thematter collected to be dumped from the box. The frame is mounted uponrear wheels 9 and front wheels 10, and is provided with the usual draftdevices. ,Directly behind the front wheels is a pair of rotary brushes11 and 12, which revolve toward each other, or

in the direction shown vby the arrows, that is, the front brush sweepsbackwardly and the rear brush sweeps forwardly and thev dirt iscollected or lifted. between the tw'o and thrown up and back onto anVendless apron 13 which'elevates the dirt into the box or hopper abovereferred to. VThe apron extends at an inclination upwardly andbackwardly from the rearl brush. The' shaftsA of the brushes aresupported at their .ends

in boxings at the lower edge of castings orv frames 14, of which thereis `one at each side. Each 4casting or frame has a standard 15 extendingupwardly therefrom and slid-V ing in a guide formed in the side frame 6of the machine. At the upper end the stand- Y ards are connectedrtolevers 16,by meansk of which they may be raised and lowered,

vertically adjustable frames 14.

The power is supplied from the rear wheels of the machine. The axle 2Oof said wheels has a spur gear 21l thereon which meshes with a spur gear22 the stub shaft 23 of which has a sprocket 24 thereon. A chain 25passes around the sprocket and around a sprocket 26 onthe shaft of thelower roller 17 of the apron andalso around a sprocket 27 on the shaftof the rear brush 12 as well as -a sprocket 23 on a stub shaft 29 whichcarries afgear 3() meshing with a gear 31 on the shaft of the frontbrush 11. The chain also passes over idler pulley 32 mounted upon asliding boxing 33 which is set in guides in the side frame of themachine and which is movable up and down vby means of a rodV 34, totighten or loosen the belt. A spring 35 is coiled around the rod,`acting normally to hold the belt tight. The stub axle 23 which carriesthe driving sprocket 24 is also mounted in a sliding lboxing 36 which ismovable up and down Vin a guide recess in the .side frame of themachine, being normally pressed down by spring 37 which holds the gears21 and 22 in mesh. A rod 38 is connected to the boxing 36 and extendsupwardly beside the frame and is connected at the top to a lever l39which is fulcrumed at 40. This lever is connected by a rod `41 to a handlever 42 at the front of the machine, adjacent the seat- 43 of. thedriver.- By manipulation of the lever, the boxing 36 may be raised orlowered, and the gears 21 and 22 engaged or disengaged, thereby startingor stopping `the operation of the machine.

When the device is not in use, the driving gears 21 and 22 aredisengaged, as stated, "and the sideframes or castings 14 are lifted toremove the brushes from the ground. To operate the machine for theintended purpose, the driving gears 21 and 22 are engaged, which drivesthe belt and so operatesV the brushes and the apron.' The supportingframes 14 are then lowered by means 0f the lever 16, bringing thebrushes in contact with the ground, and then'as the machine` is hauledalong, the dirt is swept up bietween the rapidly revolving brushesvlland` forni shown; but Various inodilieations niay be made: withiny.the scope thereof, as indicated in the followingclaims..A

IClaiin:

l; ln' aI street sweeper, the combination off a wagoirfrarne-with afboXatI Oneend thereof, a pair oit" rotary brushes extending acrossatltheother endfofathe frame', means to ldrive said brush'es inaopposite directions,

."where'by thefdirtf will belifted` or' thrown up Lbetween them, anvinclined shield fixed between the sidesV of the` franie above thebrushes -andextendlng at an'inelinatlon upbox at the rear end, rotarybrushes at the front end thereof, a eonveyer extending from saidbrushesto the wagon box, Vertieally adjustable frames supporting said brushesand the front end or the eonveyer, and ineans to drive said brushes andthe Conveyor, including a. Vgear wheel on the rear axle ot the wagon, astub sha'lt slidably mounted on the side et the wagon and having@vthereon a` gear wheel movable into and outA of engagement with the saidgear wheel, and belt and sprocket gearing between-the stub shaft and thebrushes and eonveyer;

In testimony7 whereof, I alliK my signature in presence of twowitnesses.

JOHN BNSER.

llitnesses z THURMAN S. llonixsox,

S. C. Dwfnu.

